CN210972897U - Blockage-preventing dredging device for hopper - Google Patents
Blockage-preventing dredging device for hopper Download PDFInfo
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- CN210972897U CN210972897U CN201922053496.XU CN201922053496U CN210972897U CN 210972897 U CN210972897 U CN 210972897U CN 201922053496 U CN201922053496 U CN 201922053496U CN 210972897 U CN210972897 U CN 210972897U
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Abstract
The utility model relates to a hopper anti-blocking coal dredging device, it includes dredging mechanism, P L C system and hydraulic system, dredging mechanism includes scraper blade, girder and connecting plate, dredging mechanism sets up the hopper wall inboard in the hopper easily blocked up coal region, the even symmetry of scraper blade is fixed to be set up in the girder both sides, the connecting plate sets up the bottom surface at the girder, hydraulic system adopts two play pole pneumatic cylinders, pneumatic cylinder fixed mounting is in the hopper wall outside of easily blocked up coal region in the hopper, open two vertical long and narrow type holes on the hopper wall, be connected pneumatic cylinder and girder through the connecting plate the utility model discloses collect machinery, electricity, hydraulic pressure as an organic whole, compact structure, exert oneself greatly, can be applied to various irregular or the easily blocked up coal hopper that the bucket capacity is little, through with belt conveyor chain operation, full flow mediation hopper, prevented the hopper chute blockage, effectively ensured the continuation of coal conveying operation and gone on.
Description
Technical Field
The utility model relates to a belt conveyor equipment field, in particular to stifled coal pull throughs is prevented to hopper.
Technical Field
In operation sites such as coal ports, steel plant power plants and the like, coal conveying is completed by belt conveyors, and hoppers are arranged between the conveyor belts and used for transferring coal flows. Due to the influence of factors such as hopper shape, hopper capacity, coal type, humidity and the like, the phenomenon of coal adhesion exists on the inner wall of part of the hopper during operation. When the caking coal is accumulated to a certain degree, the hopper can be completely blocked, so that the production is forced to be interrupted.
The traditional manual method for processing the coal blockage fault of the hopper comprises the steps of hammering by a hammer, poking by an iron drill rod and punching by a water belt, but has high labor intensity and low dredging efficiency; the mechanical methods adopted in the prior art are as follows: a rapping motor, an air cannon and other devices are arranged on the hopper, but the problems of large rapping noise, large damage to the steel structure of the hopper, more compactness in case of vibration and the like exist. The loosening machine that appears in recent years has played fine effect to dredging the hopper, but the device overall dimension is great, is adapted to large-scale, regular hopper, is difficult for installing in small-size, special-shaped hopper, and the device just works after the hopper chute blockage in addition, can not realize that production goes on in succession.
In view of the above shortcomings in the prior art, it is necessary to develop a coal blockage preventing dredging device which can be mounted on hoppers of various shapes, can dredge the hoppers in a whole flow and ensure continuous coal conveying operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, the utility model is to provide a stifled coal pull throughs is prevented to hopper, its compact structure is adapted to the hopper of various shapes, through with belt conveyor chain operation, the full flow mediation hopper, the prevention hopper chute blockage to guarantee going on in succession of coal conveying operation.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a hopper anti-blocking coal dredging device comprises a dredging mechanism and a hydraulic system; the dredging mechanism comprises a scraper, a main beam and a connecting plate, and is arranged on the inner side of the hopper wall of the easily blocked coal region in the hopper; the scrapers are uniformly and symmetrically fixedly arranged on two sides of the main beam, and the connecting plate is arranged on the bottom surface of the main beam; the hydraulic system adopts a double-rod hydraulic cylinder, two sides of the hydraulic cylinder are respectively provided with a hydraulic cylinder piston rod lug ring, and the hydraulic cylinder is fixedly arranged on the outer side of the hopper wall of the area which is easy to block coal in the hopper through bolts; the dredging mechanism is driven by the hydraulic cylinder; the hopper wall is provided with two long and narrow holes along the longitudinal direction, the connecting plate penetrates through the holes, the first end of the connecting plate is fixedly connected with the main beam, and the second end of the connecting plate is fixedly connected with the lug ring of the piston rod of the hydraulic cylinder; follow the girder evenly is provided with the clamp, the clamp card passes through the bolt fastening simultaneously on the girder and is inboard at the hopper wall.
Preferably, the distance between the adjacent scraping plates is greater than the stroke of the hydraulic cylinder, and the length of the main beam is greater than the sum of the total length of the hydraulic cylinder and twice the stroke of the hydraulic cylinder.
Preferably, the connecting plates are arranged in two blocks, and the distance between the two connecting plates is equal to the distance between the two earrings of the hydraulic cylinder.
Preferably, the distance between the centers of the two holes is equal to the distance between the two earrings of the hydraulic cylinder, and the length of the holes is slightly larger than the stroke of the hydraulic cylinder.
Preferably, a ring of wear-resistant sealing plate is fixedly arranged on the inner side of the hopper wall along the periphery of the hole.
Preferably, the shape of the hoop is in a symmetrical zigzag shape, and the distance between every two adjacent hoops is equal to the distance between every two adjacent scrapers.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses collect machinery, electric, hydraulic pressure as an organic whole, compact structure, exert oneself greatly, can be applied to various irregularities or the easy chute blockage hopper that the fill is small, through with belt conveyor chain operation, the hopper is dredged to the full flow, has prevented the hopper chute blockage to effectively ensured going on in succession of coal transport operation.
Drawings
FIG. 1 is a schematic view of the working principle of the anti-blocking coal dredging device for the hopper of the utility model;
FIG. 2 is a front view of the dredging mechanism of the anti-blocking coal dredging device for the hopper of the utility model; and
fig. 3 is a side view of the dredging mechanism of the anti-blocking coal dredging device for the hopper.
Description of some reference numerals:
Detailed Description
Combine fig. 1 to fig. 3, the utility model provides a pair of stifled coal pull throughs is prevented to hopper, it includes pull throughs 100, P L C system 200 and hydraulic system 300. pull throughs 100 includes scraper blade 1, girder 2 and connecting plate 5, pull throughs sets up the inboard of the hopper wall 8 of the easy stifled coal region 500 in the hopper.A plurality of scraper blades 1 even symmetry sets up the both sides at girder 2, be used for cleaing away the long-pending coal of adhesion on the hopper inner wall, girder 2 passes through hydraulic system 300 drive and transmits power for scraper blade 1, for guaranteeing to scrape the coal effect, distance between the adjacent scraper blade should slightly be greater than the stroke of pneumatic cylinder 6. connecting plate 5 sets up the bottom surface of fixing at girder 2, be used for connecting girder 2 in the hopper and the outer pneumatic cylinder 6 of hopper.
As shown in fig. 3, the hydraulic system 300 is a double-rod hydraulic cylinder, two sides of the hydraulic cylinder are respectively provided with a hydraulic cylinder piston rod lug, because the hydraulic cylinder 6 is a double-rod symmetrical hydraulic cylinder, two connecting plates must be arranged, and the distance between the two connecting plates is equal to the distance between the two lug rings of the hydraulic cylinder 6. The hydraulic cylinder 6 is fixedly installed on the outer side of the hopper wall 8 of the easily blocked coal area 500 in the hopper through bolts.
Two longitudinal long and narrow holes are formed in the hopper wall 8 and used for connecting the dredging mechanism 100 in the hopper with the hydraulic cylinder 6 outside the hopper, the center distance of the two holes is equal to the distance between two earrings of the hydraulic cylinder 6, and the length of the holes is slightly larger than the stroke of the hydraulic cylinder 6 so as to ensure that the movement of the dredging mechanism 100 is not interfered.
For preventing girder 2 accident fish tail conveyer belt that drops, evenly be provided with clamp 3 along girder 2, the clamp appearance is symmetry "nearly" font, and the first end card of clamp is on girder 2, and the inboard at hopper wall 8 is passed through the bolt fastening to the second end of clamp 3. In order to avoid the interference of the hoops 3 on the movement of the dredging mechanism, the distance between the adjacent hoops is equal to the distance between the adjacent scraping plates.
A circle of wear-resistant sealing plate 4 is arranged on the inner side of the hopper wall 8 along the periphery of the long and narrow hole to prevent the coal flow 400 from leaking out of the hole and realize dynamic sealing between the bottom surface of the main beam 2 and the inner side of the hopper wall 8.
The length of the main beam 2 is larger than the sum of the total length of the hydraulic cylinder 6 and twice the stroke of the hydraulic cylinder, so that coal leakage caused by the fact that the main beam 2 cannot cover the long and narrow hole when the dredging mechanism moves to the upper limit position and the lower limit position is avoided.
And a proximity switch 7 is arranged at the outer side of the hopper wall 8 and at the limit position of the up-and-down movement of the dredging mechanism and is used for feeding back a position signal to the P L C system 200 to control the hydraulic system 300 and drive the dredging mechanism 100 to move so as to realize the automatic reversing of the dredging mechanism.
The working process of the present invention is further described below with reference to the following embodiments:
the utility model provides a stifled coal pull throughs is prevented to hopper, when coal transport operation flow start, through chain control, belt conveyor and hopper prevent that stifled coal pull throughs drops into the operation simultaneously.
The movement times and the standby time of the dredging mechanism in one operation period are set in advance according to working conditions such as coal types, humidity and ambient temperature. In the coal conveying operation, as the coal flow 400 starts to fall into the hopper, the accumulated coal gradually adheres to the inner side of the hopper wall of the coal clogging prone region 500 in the hopper.
This stifled coal pull throughs is prevented to hopper, every standby time is long, according to the procedure that has set for, through installing in the hopper wall outside, the long coal deposit position signal of P L C system 200 is fed back to proximity switch 7 of pull throughs up-and-down motion extreme position department, control pneumatic cylinder 6 by P L C system 200, the girder 2 of drive pull throughs 100 rotates, be used for scraper blade 1 transmission power, order to order about scraper blade 1 to paste the inboard up-and-down motion of hopper wall, accomplish the motion number of times of an operation cycle, in time scrape the long coal deposit of the inboard adhesion of hopper wall, prevent that the long coal deposit becomes the thickening and causes the interruption of coal conveying operation until the hopper blocks up.
When the coal conveying operation flow is finished, the belt conveyor stops operating, and the hopper anti-blocking dredging device also automatically stops operating.
The utility model discloses collect machinery, electricity, hydraulic pressure as an organic whole, compact structure, exert oneself greatly, can be applied to various irregularities or the easy chute blockage hopper that the fill is little. Through the chain operation with the belt conveyor, the hopper is dredged in the whole process, the coal blockage of the hopper is prevented, and the continuous operation of the coal conveying operation is effectively ensured.
The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (6)
1. The utility model provides a stifled coal pull throughs is prevented to hopper, its characterized in that including pull throughs and hydraulic system:
the dredging mechanism comprises a scraper, a main beam and a connecting plate, and is arranged on the inner side of the hopper wall of the easily blocked coal region in the hopper; the scrapers are uniformly and symmetrically fixedly arranged on two sides of the main beam, and the connecting plate is arranged on the bottom surface of the main beam;
the hydraulic system adopts a double-rod hydraulic cylinder, two sides of the hydraulic cylinder are respectively provided with a hydraulic cylinder piston rod lug ring, and the hydraulic cylinder is fixedly arranged on the outer side of the hopper wall of the area which is easy to block coal in the hopper through bolts; the dredging mechanism is driven by the hydraulic cylinder;
the hopper wall is provided with two long and narrow holes along the longitudinal direction, the connecting plate penetrates through the holes, the first end of the connecting plate is fixedly connected with the main beam, and the second end of the connecting plate is fixedly connected with the lug ring of the piston rod of the hydraulic cylinder; follow the girder evenly is provided with the clamp, the clamp card passes through the bolt fastening simultaneously on the girder and is inboard at the hopper wall.
2. The hopper anti-clogging coal dredging device according to claim 1, characterized in that: the distance between the adjacent scraping plates is larger than the stroke of the hydraulic cylinder, and the length of the main beam is larger than the sum of the total length of the hydraulic cylinder and twice the stroke of the hydraulic cylinder.
3. The hopper anti-clogging coal dredging device according to claim 1, characterized in that: the distance between the two connecting plates is equal to the distance between the two earrings of the hydraulic cylinder.
4. The hopper anti-clogging coal dredging device according to claim 1, characterized in that: the center distance of the two holes is equal to the distance between the two lug rings of the hydraulic cylinder, and the length of the holes is slightly larger than the stroke of the hydraulic cylinder.
5. The hopper anti-clogging coal dredging device according to claim 1, characterized in that: and a circle of wear-resistant sealing plate is fixedly arranged on the inner side of the hopper wall along the periphery of the hole.
6. The hopper anti-clogging coal dredging device according to claim 1, characterized in that: the clamp appearance is the symmetry several font, and is adjacent distance between the clamp equals adjacently the distance between the scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922053496.XU CN210972897U (en) | 2019-11-25 | 2019-11-25 | Blockage-preventing dredging device for hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922053496.XU CN210972897U (en) | 2019-11-25 | 2019-11-25 | Blockage-preventing dredging device for hopper |
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| Publication Number | Publication Date |
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| CN210972897U true CN210972897U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922053496.XU Active CN210972897U (en) | 2019-11-25 | 2019-11-25 | Blockage-preventing dredging device for hopper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716362A (en) * | 2021-08-24 | 2021-11-30 | 华能国际电力股份有限公司上海石洞口第一电厂 | Anti-blocking coal device for activation feeder |
-
2019
- 2019-11-25 CN CN201922053496.XU patent/CN210972897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716362A (en) * | 2021-08-24 | 2021-11-30 | 华能国际电力股份有限公司上海石洞口第一电厂 | Anti-blocking coal device for activation feeder |
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